part of start stage end stage caudal pretectal nucleus Diencephalic nucleus that is part of the superficial pretectum and is rostrally contiguous with the magnocellular superficial pretectal nucleus. Cells of the caudal pretectal nucleus are slightly smaller and less orderly around a central neuropil than those of the magnocellular superficial pretectal nucleus. From Neuroanatomy of the Zebrafish Brain. caudal pretectal nuclei ZFA:0000631 TAO:0000631 posterior pretectal nucleus zebrafish_anatomy superficial pretectum diencephalic nucleus unknown adult